Dennis Laurion fired off his screed on a few rate-your-doctor websites in April 2010, along with some letters about what he saw as poor bedside manner by his father's neurologist. He expected at most what he calls a "non-apology apology."

"I really thought I'd receive something within a few days along the lines of 'I'm sorry you thought I was rude, that was not my intent' and that would be the end of it," the 66-year-old Duluth retiree said. "I certainly did not expect to be sued."

He was. Dr. David McKee's defamation lawsuit was the beginning of a four-year legal battle that ended Wednesday when the Minnesota Supreme Court ruled the doctor had no legal claim against Laurion because there was no proof that his comments were false or were capable of harming the doctor's reputation.